2013Electronics

Most of the times people near the traffic signals wasting time because of the particular time is fixed in changing signal eventhough no one is moving. Hence by using the sensors (like SICK's mid range distance sensors-DL50 which are cheaper and accurate), shifting of the signal will change automatically by detecting the vehicle presence or humans from the sensors which are fixed above the traffic signal. These sensors have measuring range from 200mm to 50000mm. Response time of 15ms/30ms and a good repeatability of 3mm/2mm.

Also another kind of sensors(like AMR-Anisotropic Magnetoresistive sensors) placed below the ground surface which measures the vehicle or human presence by using the magnetic field. Whenever nothing is passing over this sensor, will send ...